Development of the Judgement Criteria of Piston Pin Bushing Corrosion

Abstract

In this study, judgement criteria for corrosion of piston pin bushing has been developed, which enables evaluation of design validity against corrosion before running engine durability test. Judgement criteria were obtained by performing plenty of tests by test rig simulating actual environment of bushing in engine with acceleration test conditions. The judgement criteria enable to predict corrosion state by estimating contact pressure and temperature of bushing at design stage.